christie is also speaking out about his health. our question tonight, could someone who is considered overweight also be considered healthy. we have answers for you ahead. "360" m.d. sanjay gupta will join us for that. also, why some people build bunkers. what drives them to prepare for everything from natural disasters to the end of the world as he see it. >>> we begin tonight with breaking news. the first look at the bunker jimmy lee dykes turned into a prison cell for a 5-year-old boy and a kind of twisted alamo where he made his final fatal stand. a bunker we're now learning that included two bombs. the fbi just released the photos. this is the bunker itself. the blue tent was added to preserve any evidence that may be underneath. now, as you can see, official vehicles surround the property. the sheriff's department, humvee, and in the background, a large armored vehicle. you can see the crime scene tape roping off a perimeter. this surrounded by sandbags is the pvc piping that leads into that bunker. negotiators used it to com